Large, unauthorized convoy enters east Ukraine from Russia: Ukrainian military

Large, unauthorized convoy enters east Ukraine from Russia: Ukrainian military

A volunteer of the Ukrainian paramilitary Azov battalion waits on an armoured vehicle, as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day. AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Volunteer of the Ukrainian paramilitary Azov battalion wait on an armoured vehicle, as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day. The inscription on the Ukrainian flag (L) reads 'Defence of the city'. AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

A volunteer of the Ukrainian paramilitary Azov battalion makes a victory sign while waiting on an armoured vehicle, as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day. AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Ukrainian army soldiers wait to go to the front line on an armoured vehicle as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day.
AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Ukrainian army soldiers go to the front line on an armoured vehicle as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day.
AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Ukrainian army soldiers wait to go to the front line on an armoured vehicle as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day.
AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Ukrainian army soldiers go to the front line on an armoured vehicle as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day.
AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Ukrainian army soldiers go to the front line on an armoured vehicle as pro-Russian separatists fire heavy artillery, on the outskirts of the key southeastern port city of Mariupol, on September 5, 2014. NATO leaders are expected to announce a raft of fresh sanctions against Russia on Friday over its actions in Ukraine, although hopes remain that a ceasefire can be forged at peace talks in Minsk on the same day.
AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)

Lorries, part of a Russian humanitarian convoy, cross the Ukrainian border at the Donets'k-Izvarino custom control checkpoint as Ukrainian refugees look at them on September 13, 2014. The first 35 vehicles in a second Russian aid convoy heading for rebel-controlled eastern Ukraine have crossed the border, Russian news agencies reported. AFP PHOTO / SERGEI VENYAVSKY (Photo credit should read SERGEI VENYAVSKY/AFP/Getty Images)

Lorries, part of a Russian humanitarian convoy, cross the Ukrainian border at the Donets'k-Izvarino custom control checkpoint as Ukrainian refugees look at them on September 13, 2014. The first 35 vehicles in a second Russian aid convoy heading for rebel-controlled eastern Ukraine have crossed the border, Russian news agencies reported. AFP PHOTO / SERGEI VENYAVSKY (Photo credit should read SERGEI VENYAVSKY/AFP/Getty Images)

KIEV, UKRAINE - SEPTEMBER 12: Ukrainian President Petro Poroshenko (2nd L) meets with European Commission President Jose Manuel Barroso (2nd R) and European Commissioner for Enlargement and European Neighborhood Policy Stefan Fule (3rd R) in Kiev, Ukraine, on September 12, 2014. Barroso and Fule are in Kiev to attend the 11th Yalta European Strategy Annual Meeting taking place between September 11 and 13. (Photo by Bahadir Vanli/Anadolu Agency/Getty Images)

(Reuters) - Ukraine said on Sunday that a convoy of 106 vehicles had entered its eastern territory from Russia without Kiev's permission and accused Moscow of once again using humanitarian aid shipments to send weapons and ammunition to separatist rebels.

In the separatist-held city of Donetsk, fighting intensified at the local airport, a Reuters witness said. There has been continued shelling from both government forces and the rebels, even after a peace deal signed on Sept. 5.

Months of fighting in Ukraine's separatist regions have left many without sufficient food and medical supplies. Russia has regularly dispatched shipments of aid, a move which the pro-Western Kiev government has denounced as cynical.

"The lion's share of humanitarian supplies find their way to the rebels partly in the form of food, but mostly it is ammunition, equipment and other things for combat operations," Ukrainian military spokesman Andriy Lysenko said in a televised briefing.

The latest delivery of Russian supplies is the eighth since mid-August, Russian news agency RIA cited Russia's emergency ministry as saying, adding that a total of 9,500 tonnes of mainly food, building materials and medicine had been delivered by the first seven convoys.

A Reuters witness in Donetsk said repeated volleys of artillery fire could be heard from the direction of the local airport, a strategic point that both Ukrainian troops and rebels lay claim to.

Both sides have accused each other of violating the terms of the truce, raising fears it could collapse entirely.

Lysenko said three Ukrainian servicemen and an 82-year-old civilian had been killed in the past 24 hours.

He also said Ukrainian positions in Mariupol, a strategic city on the Sea of Azov, were once again coming under attack from rebel shelling.